Antigens & Antibodies Definitions Quiz
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Questions and Answers

Which of the following molecules has the capacity to elicit the formation of antibodies and react specifically with these antibodies?

  • Antibodies
  • Immunogens (correct)
  • Plasma cells
  • Haptens
  • What type of molecules cannot induce an immune response but have the ability to react with specific antibodies?

  • Plasma cells
  • Immunogens
  • Antibodies
  • Haptens (correct)
  • Where are antibodies present and secreted by in the immune system?

  • T-cell membrane
  • Lymph nodes
  • B-cell membrane (correct)
  • Plasma cells
  • Which proteins constitute about 20% of the protein in the Plasma?

    <p>Antibodies</p> Signup and view all the answers

    Which property of a molecule influences immunogenicity based on its foreignness, molecular size, and chemical composition?

    <p>Chemical composition &amp; Heterogeneity</p> Signup and view all the answers

    What are molecules that induce an immune response known as?

    <p>Immunogens</p> Signup and view all the answers

    Which immunoglobulin constitutes approximately 15% of total Ig in serum?

    <p>IgA</p> Signup and view all the answers

    What is the molecular weight range of IgA?

    <p>170,000-400,000</p> Signup and view all the answers

    Which immunoglobulin is the most abundant class in serum?

    <p>IgG</p> Signup and view all the answers

    In which secretions is IgG the major immunoglobulin?

    <p>Serum</p> Signup and view all the answers

    Which immunoglobulin has the highest avidity/most efficient Ig in complement fixation and agglutination?

    <p>IgM</p> Signup and view all the answers

    Which immunoglobulin mediates immediate hypersensitive reactions?

    <p>IgE</p> Signup and view all the answers

    Which immunoglobulin serves as a binding receptor for antigens on B-cell surfaces?

    <p>IgM</p> Signup and view all the answers

    What is the only immunoglobulin to cross the placenta?

    <p>IgG</p> Signup and view all the answers

    What is the molecular weight of IgD?

    <p>180,000</p> Signup and view all the answers

    What is the serum concentration range of IgM?

    <p>40-230 mg/dl</p> Signup and view all the answers

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